The Five Most Impressive Geological Structures in the Solar System 

Or - Field trips I would like to go on.

I came across THIS ARTICLE and, although it has little to do with the West Country, could not resist putting it into the blog.

My favourites are the fold mountains of Venus and the drowned coastline of Titan. 

Fold mountains in Ovda Regio, Venus. The insert is a similar view of part of the Applachians in central Pennsylvania. NASA/JPL

Left: Part of Titan’s Ligeia Mare, showing a coastline with valleys drowned by a sea of liquid methane. Right: The Musandam peninsula, Arabia, where coastal valleys are similarly drowned, but by a saltwater sea. NASA/JPL-Caltech/ASI/Cornell and Expedition 63, International Space Station (ISS)